Kadaň weather in September

In September, Kadaň sees average daytime highs of 17°C and overnight lows near 8°C, with 62 mm of rain across 10.7 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 14°C by the end. The sky is clear or mostly clear about 21% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Kadaň's 3rd-clearest and 9th-windiest month. For the whole year in context, see Kadaň's year-round climate.

Daytime high
17°
4th warmest
Overnight low
9th coldest
Rainfall
62 mm
10.7 wet days
Daylight
12 h 24 min
5:50 AM – 6:12 PM
Cloud cover
65%
3rd clearest
Wind
10 km/h
9th windiest
Solar energy
3.13 kWh/m²
Travel score
5.0
out of 10

Kadaň is town in the Czech Republic.

Air quality
Moderate
PM2.5 12.8 µg/m³ · 2019
Density
286/km²
people per km²
Founded
1183

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 19°C in the first days to 14°C by the end.

A typical September day in Kadaň reaches about 17°C in the afternoon and slips back to 8°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 22°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11910
21910
31910
41810
51810
61810
7189
8189
9189
10189
11179
12179
13179
14178
15178
16178
17168
18168
19168
20168
21167
22167
23157
24157
25157
26157
27157
28157
29147
30147

How September really feels in Kadaň

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kadaň weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°5211.88.78.30.0
Feb / -4°419.46.99.70.0
Mar / -1°5512.16.311.50.5
Apr12° / 4811.21.913.52.8
May16° / 7313.20.115.24.6
Jun19° / 10°8614.1016.15.5
Jul22° / 12°9514.5015.85.9
Aug21° / 12°8413.3014.36.0
Sep17° / 6210.7012.45.0
Oct11° / 5410.70.710.52.5
Nov / 50103.98.80.3
Dec / -3°5311.47.97.90.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13763
23763
33763
43664
53763
63763
73862
83862
93862
103862
113961
123961
133961
143961
153961
163961
173862
183763
193763
203664
213664
223565
233565
243466
253466
263367
273268
283169
293169
303070

Chance of precipitation in September

Any precipitation

Kadaň gets around 62 mm of rain over 10.7 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
141
241
341
441
541
641
740
840
939
1039
1138
1238
1337
1436
1535
1635
1734
1834
1933
2033
2133
2233
2333
2433
2533
2633
2734
2835
2935
3036

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
180182
282171
383161
484151
585141
686131
787121
888120
989110
1090100
119190
129190
139280
149370
159460
169460
179550
189640
199640
209730
219730
229820
239820
249820
259910
269910
279910
289910
299910
309910

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over September. Sunrise moves from 5:27 AM to 6:12 AM, and sunset from 6:47 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:276:47
213.35:286:44
313.25:306:42
413.15:316:40
513.15:336:38
613.05:346:35
713.05:366:33
812.95:386:31
912.85:396:29
1012.85:416:26
1112.75:426:24
1212.65:446:22
1312.65:456:19
1412.55:476:17
1512.45:486:15
1612.45:506:12
1712.35:526:10
1812.25:536:08
1912.25:556:06
2012.15:566:03
2112.05:586:01
2212.06:005:59
2311.96:015:56
2411.96:035:54
2511.86:045:52
2611.76:065:49
2711.76:075:47
2811.66:095:45
2911.56:115:42
3011.56:125:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.13 kWh/m².

For context, solar energy here swings from a low near 0.72 kWh/m² to a high of 5.34 kWh/m² in June across the year — September's 3.13 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.7Moderate
33.7Moderate
43.6Moderate
53.6Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.4Moderate
103.4Moderate
113.3Moderate
123.3Moderate
133.3Moderate
143.2Moderate
153.2Moderate
163.1Moderate
173.1Moderate
183.0Moderate
193.0Moderate
203.0Moderate
212.9Moderate
222.9Moderate
232.8Moderate
242.8Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.5Moderate
302.5Moderate
Planning a trip in September

Is September a good time to visit Kadaň?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.0
Sightseeing
4th-best month of the year
1.1
Beach & pool
4th-best month of the year

September is a reasonable time to visit Kadaň for sightseeing.

What to pack for Kadaň in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Kadaň sees daytime highs around 17°C and nights near 8°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

UV index in Kadaň in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kadaň peaks around June 21 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 21UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr4Moderate
May6High
Jun7Very high
Jul7High
Aug7High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Kadaň in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Kadaň is worst in April — around 15 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Kadaň's WHO annual average of 12.8 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1315 µg/m³Dec 1410 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Good
Mar15Moderate
Apr15Moderate
May13Moderate
Jun15Moderate
Jul13Moderate
Aug14Moderate
Sep13Moderate
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Kadaň?

Kadaň sits at 50.4°N, 13.3°E, 302 m above sea level, in Czechia. The nearest listed city is Chomutov, 14 km away.

Annaberg-BuchholzMostMarienbergKarlovy Vary

Topography around Kadaň

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kadaň.

Within 3 km, the terrain around Kadaň has significant variations in elevation — a maximum elevation change of 302 m around an average of 343 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 816 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,205 m.

The land around Kadaň is covered by trees (43%) and grassland (34%) within 3 km, trees (48%), grassland (23%) and cropland (23%) within 16 km, and trees (46%) and cropland (31%) within 80 km.

3 km
302 m
16 km
816 m
80 km
1,205 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Chomutov 14 km · Jirkov 18 km · Žatec 21 km · Ostrov 25 km · Annaberg-Buchholz 29 km · Most 29 km · Marienberg 31 km · Karlovy Vary 33 km

Czechia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 59% of US
price level, 2025
GDP per capita
$35,917
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
5.9
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 582
Religion
none 48%believers unaffiliated with a religious society 9%Roman Catholic 7%other believers belonging to a church or religious society 6%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Kadaň (50.3833°, 13.2667°, elevation 302 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).